Up until five minutes ago, I thought the lyric in Maybe Tomorrow by the Jackson 5 was "I only know my head when it's here on Earth, this time you'll look into my eye" when it turns out it's really "I only know my heaven is here on Earth, each time you look into my eyes". It's strange because my version still made sense to me.
A childhood belief about misheard lyrics

others believed things like this
- The very first time I saw a globe (of Earth, yes) I asked where "College" was located.— Shade
- I thought rain was made when God was crying, and wind when God blew on the earth because it was too hot.— Andy T
- I believed dinosaurs made the mountains whenever they walked the earth.— Tammy
- when i was 4 i thought an earthquake was an earth cake!— chardog
- i thought if you went to the bottom of the earth you would fall off.— Tiffany Amber Stefanko
- When I saw that the clouds were moving in the sky, I thought it was because of the rotation of the earth.Anon